Jun 준was born on Monday, June 10, 1996, in Shenzhen, Guangdong, China.

Like fellow members Hoshi, Wonwoo, and Woozi, he was born in the Chinese Year of the Rat. He and Hoshi are both Geminis. He’s 180 cm or 5'11" tall, the same height as Wonwoo. Jun, Jeonghan, Hoshi, Mingyu, and Seungkwan’s blood type is B.

He and The8 both speak Mandarin and are Chinese. Jun also speaks Cantonese. He attended International Language Institute, Phuket High School, and Buji Senior High School. He has a younger brother.

Jun was a child actor in China. He says that many Chinese students love Kpop; he became curious about it and moved to Korea. He appeared in Nu’est’s music video for “Face” and Hello Venus’ music video for “Venus.” He’s a member of Seventeen’s performance sub-unit. He plays the piano.